Download Cell Cycle SG

Cell Cycle Unit Study Guide
Name
.
1. Cell division is necessary for _____________, _____________, ______________, &
2. The 3 stages of the cell cycle are: ____________________, _________________, ____________________
3. _______________________: period between cell divisions
Stage
G1
Major Event(s)
G0
S
G2
4. ____________________: process of sorting and distributing chromosomes for cell division
Phase
prophase
Major Event(s)
metaphase
anaphase
telophase
5. Describe the process of cytokinesis and its end products.
6. Explain why a chromosome does not have sister chromatids during G1.
7. Describe the 3 major events in DNA synthesis:
a.
b.
c.
8. Why is DNA replication considered “semi-conservative”?
9. Write the complementary DNA bases for this DNA segment: GGCTCAATG
Describe the functions of each of these enzymes:
10. DNA ligase
11. DNA polymerase
12. helicase
Drawing
13. How are homologous chromosomes and sister chromatids different from each other?
14. The bases are always added from the ____________ direction to form the new DNA strands.
15. What makes a DNA molecule antiparallel?
List all the differences between the leading & lagging strands.
Strand
How It is Built
16. leading strand
17. lagging strand
18. Label the following drawing of the cell cycle using
these terms: cytokinesis, mitosis, interphase, G0,
G1, G2, S, anaphase, metaphase, prophase,
telophase, 2 cells formed
Direction Traveling
19. Label the following parts in the S phase diagram:
DNA ligase, DNA polymerase, helicase, lagging
strand, leading strand, Okazaki fragments, original
strands, replication fork, 3’, 5’
20. What are the 2 types of cell cycle errors?
a.
b.
21. What are the processes to correct each of these errors?
a.
b.
22. What proteins regulate progression through the cell cycle?
23. What is the function of checkpoint controls?
24. What is it called when the checkpoint control protein detects a mistake and stops the cell cycle?
25. Explain the relationship between the cell cycle and cancer.
26. Why do cell mutations happen?
27. Describe the steps in repairing mutations in DNA.